scholarly journals Electric Field Simulation Around Contaminated SIR Insulators Using MATLAB

2018 ◽  
Vol 8 (1) ◽  
pp. 2542-2545
Author(s):  
G. Satheesh ◽  
B. Basavaraja ◽  
P. M. Nirgude
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Transmission Lines ◽  
Silicone Rubber ◽  
Insulator Surface ◽  
Field Simulation

High voltage insulators are mainly used to support transmission lines. This paper focuses on simulating the electric field along the surface of contaminated Silicone Rubber (SIR) insulators. The electric field (EF) distribution is important to determine the EF stress occurring on the insulator surface. So, the EF distribution is analyzed using a FEM tool in MATLAB under various conditions. Two types of insulators, straight and alternate sheds, were considered. Results showed that higher EF stresses occurs on the trunk portions of both straight shed and alternate shed types. Also, the results showed higher EF magnitude on the straight shed compared to the alternate shed, under both clean and contamination conditions.

scholarly journals NOVEL ELECTRIC FIELD EXPOSURE CONTROL METHODS FOR MULTI-STORY BUILDINGS INSTALLED IN VICINITY OF HIGH-VOLTAGE APPARATUS USING FEM

2021 ◽  
Vol 11 (4) ◽  
pp. 179-203
Author(s):  
Asaad Shemshadi ◽  
Pourya Khorampour
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
High Voltage ◽  
Transmission Lines ◽  
Reduction Rate ◽  
Initial Value ◽  
Field Exposure ◽  
Faraday Cage ◽  
Metal Shield ◽  
Story Building

Facilities and buildings installed nearby high voltage equipment and electric field exposure is always a serious threat to the health of organisms and can have a significant impact on the functioning of sensitive and vital organs such as the heart and brain. Therefore, it is necessary to study the electromagnetic field value in these areas to control the intensity and restrict the induced value regarding to international recommendations. In this paper, the effects of 230KV transmission line electric fields on the environment are examined by proper FEM software.The model under consideration in this project is a four story building adjacent to the 230KV transmission line.At first, the distance between the building and high voltage transmission lines and its relationship to the intensity of the electric field is examined, and then the intensity of the electric field is compared to the standards of the International Commission on Non Ionizing Radiation Protection (ICNIRP). To continue, in places where the electric field exceeds the standard level value, solutions to reduce the intensity of the electric field to the tolerable value have been proposed.The first solution is to use a metal shield around the building as a Faraday cage, which weakens the potential for electric field value by creating an enclosed surface, the reduction rate is 4700%,both complete cage shape and incomplete cage shapes are considered in this study which reduces the exposure value to 62.5% of its initial value. The second approach to reducing the electric field is to use protective conductor paints against electromagnetic fields. In the following study, the effect of using trees as a barrier against electromagnetic radiation will be examined. Finally, the three proposed solutions are compared in terms of environmental constraints, economic justification, and the reduction in electric field value.

Design of UHVDC Wall Bushing and its Electric Field Simulation

2013 ◽  
Vol 753-755 ◽  
pp. 2526-2530
Author(s):  
Yu Mei Li ◽  
Tao Ding ◽  
Qiu Dong He
Keyword(s):  
Field Theory ◽  
Electric Field ◽  
High Voltage ◽  
Power Transmission ◽  
Work Conditions ◽  
Technical Parameters ◽  
Field Simulation

Reviewing and analyzing insulation mechanism of high voltage wall bushing, the structure of 1100kV UHVDC wall bushing and its key technical parameters are designed according to work conditions. Insulation structure and electric field of key bushing parts are simulated by ANSYS11.0. And the solution is optimized by SubProblem method based on the DC field theory. The result indicated that the parameters of designed solution could meet the needs of 1100kV UHVDC power transmission project.

The Application of the Optic Sensor in the Monitoring on the Transmission Lines

2012 ◽  
Vol 263-266 ◽  
pp. 939-942
Author(s):  
Ya Fei Hou ◽  
Rui Ke ◽  
Yi Ma ◽  
Ran Huang ◽  
Wei Deng
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Fiber Composite ◽  
Optic Fiber ◽  
Monitoring Methods ◽  
Operation Performance ◽  
Fiber Sensors ◽  
Insulator Surface ◽  
Detection Technology ◽  
Surface Electric Field

Three technologies of insulator online monitoring based on optic fiber sensors is described in proposed paper, including optic fiber sensor salt density technology, optical fiber composite insulator monitoring technology and optical sensor insulator surface electric field detection technology. According to measuring insulator surface ESDD, the internal stress and the temperature distribution of the composite insulators and insulator surface electric field values. these technology can monitor the operation performance of insulator. These techniques that improve the existing insulators monitoring methods has a strong innovative and practical application prospects.

scholarly journals Study on Surface Electric Field Simulation of High Voltage Transmission Line Assembly

2014 ◽  
Vol 02 (04) ◽  
pp. 554-563
Author(s):  
Liankai Chen ◽  
Wenqing Lai ◽  
Jun Wang ◽  
Guoyi Jiang ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Electric Field ◽  
Transmission Line ◽  
High Voltage ◽  
High Voltage Transmission Line ◽  
Field Simulation ◽  
Surface Electric Field ◽  
High Voltage Transmission
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